Transactions of Materials and Heat Treatment

Title：Development and performance evaluation on 1500 MPa anti-fatigue torsion tubular beam based on numerical simulation

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ClassificationCode：U466

year,vol(issue):pagenumber：2023,48(10):108-115

Abstract：

In order to improve the fatigue resistance of the torsion tubular beam, the key technology of the 1500 MPa anti-fatigue torsion tubular beam of an electric taxi was studied, and after completing the design of the tubular beam structure, the product performance and manufacturability were verified by using the product numerical simulation and forming numerical simulation technology. Then, the prototype was completed and passed the test verification of the assembly product. Finally, a forward development technology for tubular beams that not only met the requirements of fatigue resistance, but also met the requirements of lightweight and low cost was designed. The results show that when designing the tubular beam structure forward, the shear center of the tubular beam should be firstly deduced from the side tilt center, and then the shear center of the tubular beam is calculated to determine the X and Z positions of the tubular beam before proceeding to detailed structure design. Torsional rigidity of the tubular beam 435.5 N·m·deg-1 and torsional durability external stress 454 MPa are confirmed by the product numerical simulation technology, which meet the product requirements. Maximum thinning rate 12.9% of the tubular beam is showed by using the forming numerical simulation technology, which meets the requirements of manufacturability. After high-frequency quenching, the tensile strength of tubular beam is increased from 420-800 MPa to 1300-1700 MPa, and the torsional durability bench tests and road tests show that the fatigue resistance of the tubular beam after high-frequency quenching is about four times that of the non-high-frequency quenching tubular beam.

Funds：

吉林省教育厅科研产业处课题（JJKH20221360SK）；吉林省科技发展计划项目（20200703018ZP)

李晓林（1981-），女，硕士，副教授 E-mail：20305930@qq.com

Reference：

［1］徐小华.含硼钢管状扭力梁热处理脱碳层对疲劳性能的影响
［J］.锻压技术,2021,46(4):235-240.

Xu X H.Effect of heat treatment decarburization layer on fatigue properties of boron-containing steel pipetorsion beam
［J］.Forging & Stamping Technology,2021,46(4):235-240.

［2］Park J K, Kim Y S, Suh C H, et al. Hybrid quenching method of hot stamping for automotive tubular beams
［J］.Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture,2017,231(9):147-153.

［3］张旭,赵天会,代慈华,等.轻量化封闭截面式扭力梁横梁工艺分析
［J］.汽车工程师,2018,(3):48-50.

Zhang X,Zhao T H,Dai C H,et al.Analysis on processing of lightweight closed cross sectional torsion beam
［J］. Automotive Engineer,2018,(3):48-50.

［4］张岩红,许东辉,冯海龙,等.支撑内压对某型高强钢扭力梁液压成形的影响
［J］.锻压技术,2021,46(6):117-126.

Zhang Y H,Xu D H,Feng H L,et al.Influence of supporting internal pressure on hydroforming for a certain type high-strength steel torsion beam
［J］. Forging & Stamping Technology,2021,46(6):117-126.

［5］黄晓峰,胡勇,易成坷,等.管状变截面汽车扭力梁内高压成形工艺
［J］.精密成形工程,2018,10 (2):103 -108.

Huang X F,Hu Y,Yi C K,et al.Hydroforming process of tubular variable cross section autmotive torsion beam
［J］.Journal of Netshape Forming Engineering,2018,10 (2):103 -108.

［6］李秋寒,郭子峰,郭佳,等.500 MPa级汽车管状扭力梁横梁开裂分析
［J］.中国冶金,2020,30(8):51-55,63.

Li Q H, Guo Z F, Guo J, et al.Crack analysis of 500 MPa automobile tubular torsion beam crossbeam
［J］.China Metallurgy,2020,30(8):51-55,63.

［7］周澍,陈荣,徐沛瑶.轻型管状扭转梁的材料及退火工艺研究
［J］.精密成形工程,2019,11 (2):81-86.

Zhou S,Chen R,Xu P Y.Materials and annealing processes for lightweight tubular torsion beams
［J］.Journal of Netshape Forming Engineering,2019,11 (2):81-86.

［8］黄晓峰,胡勇,易成坷,等.管状变截面汽车扭力梁内高压成形工艺
［J］.精密成形工程,2018,10 (2):103-108.

Huang X F,Hu Y,Yi C K,et al.Hydroforming process of tubular variable cross section autmotive torsion beam
［J］.Journal of Netshape Forming Engineering,2018,10 (2):103-108.

［9］唐明松,王岩松,赵礼辉.扭力梁后桥耐久性快速评价
［J］.机械强度,2017,39(1):183-187.

Tang M S, Wang Y S, Zhao L H. Rapid evaluation of durability of torsion beam rearbridge
［J］. Mechanical Strength, 2017,39(1):183-187.

［10］韩聪,张伟玮,苑世剑,等.预制坯形状对扭力梁内高压成形影响分析
［J］.材料科学与工艺,2011,19 (4):1-5.

Han C,Zhang W W,Yuan S J,et al.The influence analysis of internal high pressure forming preform shape of the torsion beam in high pressure
［J］.Materials Science and Technology,2011,19 (4):1-5.

［11］张伟玮,韩聪,苑世剑,等.加载路径对扭力梁内高压成形壁厚分布和精度的影响
［J］.材料科学与工艺,2012,20 (4):1-6.

Zhang W W,Han C,Yuan S J,et al. Effect of loading paths on thickness distribution and precision of a hydroformed torsion beam
［J］.Materials Science and Technology,2012,20 (4):1-6.

［12］周澍,陈荣,徐沛瑶.轻型管状扭转梁的材料及退火工艺研究
［J］.精密成形工程,2019,11(2):81-86.

Zhou S,Chen R,Xu P Y.Materials and annealing processes for lightweight tubular torsion beams
［J］.Journal of Netshape Forming Engineering,2019,11(2):81-86.

［13］崔俊佳,于海平,李春峰,等.高强钢板热冲压工艺中的相变模拟
［J］.塑性工程学报,2013,20 (1):48-52.

Cui J J,Yu H P,Li C F,et al. Phase transformation simulation of high strength steel under hot stamping process
［J］.Journal of Plasticity Engineering,2013,20 (1):48-52.

［14］余凯,程和法,陈文琳,等.扭力梁热成形过程温度与微观组织的研究
［J］.塑性工程学报,2017,24(3):109-114.

Yu K, Cheng H F, Chen W L,et al.Research on temperature and microstructure of torsion beam during hot forming
［J］.Journal of Plasticity Engineering,2017,24(3):109-114.

［15］罗明军,赵永玲,宋立新,等.典型危险工况下汽车后扭力梁结构开裂分析
［J］.机械强度,2014,36(1):81-85.

Luo M J,Zhao Y L,Song L X, et al.Crack analysis of automobile rear torsion beam under typical dangerous working conditions
［J］.Mechanical Strength,2014,36(1):81-85.

［16］毛玉婷.扭力梁悬架静动态性能分析与轻量化设计
［J］.机床与液压,2020,48(20):60-65.

Mao Y T.Static and dynamic performance analysis and lightweight design of torsion beamsuspension
［J］.Machine Tools and Hydraulics,2020,48(20):60-65.

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